我们在乳腺癌根治术中碰到一例先天性胸小肌缺如患者,现报告如下:患者,女性,49岁.因右侧乳房出现肿块5个月,于1992年8月27日入本院.既往无手术史.一般情况良好,发育正常.双侧胸郭饱满无畸形.右乳内上象限有一 5.35cm大小的肿块,质硬,表面不平,边界不清,尤触痛,与皮肤及胸壁无粘连.右侧腋窝可及一肿大的淋巴结1×1cm大小,质硬,表面尚光滑,边界清,可活 We have encountered a case of congenital absence of pectoralis minor in breast cancer radical surgery, are as follows: The patient, female, 49. Due to the right breast tumor mass for 5 months, on August 27, 1992 into the hospital No history of surgery in the past. In general, good condition, normal development .Bilateral chest Guo full without deformity .Tablet the right upper quadrant of a 5.35cm size of the mass, hard, uneven surface, the boundary is not clear, especially tenderness, and the skin and chest wall No adhesions. The right axillary and swollen lymph nodes can reach 1 × 1cm size, hard, smooth surface, the boundary clear, can live